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[Project64] Add Arm/ArmOpCode.h

This commit is contained in:
zilmar 2016-06-05 11:14:55 +10:00
parent 8bd03a6763
commit 19328d5464
1 changed files with 63 additions and 0 deletions
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Source/Project64-core/N64System/Arm/ArmOpCode.h Normal file
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/****************************************************************************
* *
* Project64 - A Nintendo 64 emulator. *
* http://www.pj64-emu.com/ *
* Copyright (C) 2012 Project64. All rights reserved. *
* *
* License: *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
* *
****************************************************************************/
#pragma once
#pragma warning(push)
#pragma warning(disable : 4201) // warning C4201: nonstandard extension used : nameless struct/union
union ArmThumbOpcode
{
uint16_t Hex;
uint8_t Ascii[2];
struct
{
unsigned rt : 3;
unsigned rn : 3;
unsigned rm : 3;
unsigned opcode : 7;
};
};
union Arm32Opcode
{
uint32_t Hex;
uint8_t Ascii[4];
// uint16 + uint16 type instuction
struct
{
unsigned rn : 4;
unsigned opcode : 12;
unsigned rm : 4;
unsigned imm2 : 2;
unsigned reserved : 6;
unsigned rt : 4;
} uint16;
struct
{
unsigned rm : 4;
unsigned opcode2 : 8;
unsigned rt : 4;
unsigned rn : 4;
unsigned opcode : 12;
} uint32;
};
#pragma warning(pop)
enum ArmThumbOpCodes
{
ArmSTR_Reg = 40,
ArmLDR_Reg = 44,
ArmLDRH_Reg = 0xE19,
ArmLDRH_W = 0xF83,
};